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inclusions

Cutting Star and Cat’s Eye Gems

…is the most common cause of these visual phenomena, any inclusions that reflect light in parallel lines can create these displays, including…

Emerald Buying Guide

…with fewer inclusions receive higher values. Colorless inclusions are preferred to colored or black inclusions. Flaws on the gem’s…

Agate Buying Guide

…patterns of inclusions. Moss agates are one of the most sought-after varieties, with green inclusions that resemble moss. Similarly, dendritic…

Gemstone Optical Properties

…bending works and how much light bends when passing from air to gem is essential when cutting gems for brilliance. Gemstone Inclusions and Refraction…

Garnet Buying Guide

…contain horsetail inclusions. Beautiful to observe, they also give the stone a unique character. 4.6-ct demantoid with horsetail inclusions